Composition for dyeing leather, shoes, gloves and hides



Patented June 16, 1931 uurreo STATES PATENT OFFICE l EMILE COMES, OF LES-PONTS-DE-MARTEL, SWITZERLAND COMPOSITION FOR DYEING LEATHER, SHOES, GLOVES AND HIDES No Drawing. Application filed September 28, 1928, Serial No. 309,128, and

This invention relates to a composition for dyeing leather and the like and to a process of manufacturing the same.

The composition consists of a fatty body,.

a dye, acetone and a solvent for the fatty matter. Forthe production the fatty body is melted and admixed with the dye soluble in the fatty body and with turpentine oil by heating. The mixture is allowed to cool, whereupon medium heavy benzine is added,

the mixture allowed to stand for a certain time, and acetone is subsequently added,

EmampZe.-Stearin 5O grms, turpentine oil 50 grins, and azodye 100- grms. are together heated in a water bath to approximately 60 being airtightly closed. After this time the vessel is opened and 1300 grins. of acetone 1 are further added.

The addition of acetone serves to maintainin solution all the substances in the mixture. Acetone possesses the properties to in Switzerland October 11, 1927.

mixing the fat body, with the oil soluble dye and turpentine oil, in heating, in allowing the mixture to. cool, in adding medium heavy benzine during the cooling, in letting the mixture stand, and in adding acetone to the settled mixture.

In testimony whereof I affix my signature.

' EMILE COMES.

open the pores of the leather, to well bind the dye with the fatty substances, and to fix the same in the leather. rapidly it allows direct dyeing,

The dyeing composition described penetrates deeply into the leather and withstands the actions of the light, of the alkalis and of mechanical stresses; it further does not peel ofi.

' I claim r 1. A composition for dyeing leather, shoes, gloves and hides, consisting of a fatty body, an oil soluble dye, turpentine oil and acetone.

2. A process of producing the dyeing composition specified in claim 1, consisting in ad- As it evaporates 

